Civil war.

Khajiit and Bosmer are perceived by Altmer as inferior beings, used as meat and servants.

Heh, khajiit shawarma served by a Bosmer waiter. I can imagine that.

Added 6 minutes later

and I used to think that Ulfric was on his own, that's why I played for him, but it turned out he's with the Thalmor...

[br][/br]I hadn't gotten that far. I couldn't even imagine that he was with those long-eared, nasty creatures!

I'm deserting to the Empire, I'll be wearing a Haytham Kenway costume from Assassin's Creed 3 and will take down the Stormcloaks. However, I'll still kill the Emperor after I find the strength to complete a couple of quests.